Testnet is Live - Test Your ZEN Migration Ahead of Mainnet

June 6th, 2025

As Horizen prepares for the upcoming migration to its new appchain on Base, we’re inviting the community to participate in a testnet dry run.

This dry run is a vital part of ensuring a successful and secure migration for everyone. It is also your chance to experience the migration process first-hand, including claiming test ZEN from both the Horizen Mainchain Testnet and EON Gobi Testnet before real assets are involved.

Get familiar with the process — Learn how to claim ZEN across both Horizen and EON chains before real assets are involved
Test your setup — Validate that your wallet (Sphere, MetaMask, CLI, Ledger) works correctly and is connected to the right networks
Catch issues early — Identify any bugs or edge cases that need fixing before mainnet migration
Stress-test infrastructure — Help ensure everything scales smoothly under real user load
Avoid last-minute surprises — Know exactly what to do and when, so you're ready when the mainnet snapshot happens

This is a risk-free rehearsal for one of Horizen’s most important transitions, and a chance to shape it with your feedback.

We encourage all users, developers, and validators to participate to help us test wallet connections, claim flows, and infrastructure stability.

Migration Token Claim Testing Instructions

The official test ZEN Claim Portal:

For importing the ERC-20 token on Base Sepolia: 0x107fdE93838e3404934877935993782F977324BB

Ticker Symbol: tZEN
Connecting to Base Network
- Testnet Name: Base Sepolia
- RPC Endpoint: https://sepolia.base.org
- Chain ID: 84532
- Currency Symbol: ETH
- Block Explorer: https://sepolia-explorer.base.org